Hi, all. We’re trying to combine data from several different scanners using different acquisition sequences with differing voxel sizes. Obviously, this is a problem with the default parameters from fmriprep because the output MNI maps maintain the original voxel dimensions.
If I understand correctly, I can standardize the fmriprep outputs using the --output-grid-reference flag.
I could use help with two questions concerning this:
- Which resolution should I choose? I can imagine arguments for choosing the coarsest resolution of all the studies, the finest resolution of all the studies, or a simple 2x2x2 resolution that matches the MNI template defaults.
- Is there anything especially wrong with passing the MNI template found within the fmriprep data directory to --output-grid-reference?